.scrollWrap{
  position: relative;
}
.scroll{
  height: 100vh;
  position: relative;
}
.listItem{
  border:1px solid red;
  padding: 50px 30px;
}
.refresher{
  background-color: #f1f2f3;
  text-align: center;
  padding:30px;
  height:120px;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  align-items: center;
  color:#333;
  // transform: translateY(-120px);
  margin-top: -120px;
  transition: margin-top .3s;
}
